A liquid flow out drop by drop from a vessel through a vertical tube with an internal diameter of 2 mm, then the total number of drops that flows out during 10 grams of the liquid flow out: [Assume that the diameter of the neck of a drop at the moment it breaks away is equal to the internal diameter of tube and surface tension is 0.02 N/m]
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CHECK THE SOLUTION.
( 0780)
Sol . If m is mass of single drop then as it drops
mg = 2 π rT
If number of drops in M = 10 grams is N then,
N = 
= 
= 
779.86 
780
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